Fuse-clip clamp



I Aug. 12 ,'1924@ 1,504,993

P. STRUGHOLD `Fusxz: CLIP CLAMP Filed Dec. 10 1923 v v 4 INVENTOR.

' ATTORNEY.

` et@ r' rughold,

Patented Aug. 12, 1924.

UNITED STATES 1,504,993 APATl-:NT or-Flci-z.A

PETER STBUGHOLI), 0F ST. LOUIS, MISSOURI.

liUS'Ei-CLIP CLAMP.

Application led December 10, 1923. Serial No. 67-'9,808.

a stood that a clamp in accordance with this invention can be employed for any purposes for which it is. found applicable, and the invention has for its object 'to provide, in a manner as hereinafter set forth, a clamp for insuring perfect connection or contact between the terminals of a fuseand the clips therefor, to prevent the jaws ofthe clips from spreading when the terminals of the fuses are positioned therebetween, to hold the clips `and fuse terminals tightly together to set-up a perfect contact thereby overcoming fuse troubles, to overcome the cor-V roding of the clips by'heating, due to improper contact between the fuse terminals and the cli-ps,'to reduceto a minimum the burning of the fuse case or shell at the ends thereof, as well as to prevent the fuse blowing at its ends, due to improper contact between the fuse terminals and the clips, and to reduce to a minimum the cost, inconven- ,i a ience and trouble of replacing fuse clips.

Further objects of the invention are. to provide a fuse clip clamp, in a manner as hereinafter set forth, which is simple in its construction and arrangement, strong, durable, compact, thoroughly efficient and convenient in its use, readily assembled, and comparatively inexpensive to manufacture.

With the foregoing and other objects in view, the invention consistsof the novel con'- struction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be-resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure l is a top plan-of a fuse of the cartridge type, showing the adaptation therewith of a pair of fuse clip clamps, in

accordance with this invention.

Figure 2 is a fragmentary view, in sideelevation, of one end of the fuse, showing a fuse clip clamp in accordance with this invention withA respect to a fuse.

Figure 3 is a grouped perspective viewv of a fuse clip clamp in accordance with this invention.

Figure 4 is an end view of a cartridge fuse, lshowing theadaptation therewith of a modified form of fuse clip clamp in accordance with this invention.

Referring to the drawings in detail, 1 denotes a fuse clamp of the cartridge type and which is mounted on a base 2, provided with a pair of fuse clips 3 at each end, and extending between each lpair of clips 3 is a fuse terminal 4.

In Figure 1 of the drawings, the clamp is indicated generally by the reference character 5, and a clamp is mounted inoperative relation with respect to each pair of clips 3 for maintaining the fuse terminals 4 in perfect contact with the pairs of clips 3.

p Referring to Figures .1, 2 and 3 of the drawings, the fuse clip clamp asA illustrated comprises` a .polygonal-shaped base plate 6, formed with an opening 7 having the wall thereof threaded. The opening 7 is positionedcentrally of the plate 6 and in proxi imity to its outer end-` Arranged upon the upper face of the plate 6, at each side of the opening 7, is a pair 'of jaw Shanks 8 9, each formed with an opening 10 which registers with an opening 11, formed in proximity to an inner corner of the plate 6.

The shank 8, as Well as the shank 9, is pivotally mounted upon the upper face ofthe plate 6 and is of a length so'as toproject a substantial distance inwardly of the plate 6, and said shank 8 as well as the shank 9, is pivotally connected to the plate 6 by a pivot pin 12, which extends through the aligning openings lO and 1l and is fixed at its lower end to the plate 6. c

Positioned,y upon the topof theshanks 8 and 9, is a transversely extending coupling bar 13, having theends thereof mounted on the upper terminal portions of the pivot pins 12. The pivot pin 12 is positioned between the center and the inner ends of the trically pivoted.

Positioned on the inner end of each of said shanks is a pivotedjclainping jaw and with the clamping faceof one jaw opposing the clamping face of the inner jaw, and with the clamping faces of the jaw arranged between the shanks 8 and 9. Each of said jaws consists of a polygonal-shaped body portion 14 standing on edge and whiclihas the inner face` thereof serrated, as at 15 and provides a clamping face. The body portion 14 is constructed of a strip ofnietallic material of substantial gauge bent to provide vertically disposed portions 16 17and horizontally extending portons 18, 19. The portions 16, 17, are arranged against the outer face of the body portion 14, and the portions `18 and 19 are disposed at right angles with`respect to the body portion 14 and provide a pair of outwardly projecting tlangesarranged in superposed spaced rc-.

lation. The flanges 18 -and 19 are seated against the top and bottom of eaehof said Shanks and said flanges, centrally thereof,

are pivetally connected, as at 20, to the inner terminus of a shank, whereby the body portion 14 will project inwardly with y -inner terminal 'portioii.21, whereby the body portion 14 of the clamping jaw when in normal position will be flush with the inner face of the shank. The inner face of the shank 8, as well as the shank 9, at a point between the center thereof and the outer end, is cut away to provide a curved tapered wedging surface 22.

When the clamp is set up with respect to a pair ofclips 3, the clips of the pair and the clamping jaws are shifted to operative position so as to tightly engage the clips of the air, whereby a clamping action is set up etween the pair of clips and the fuse terminals` 4, so as to insure perfect connection between said terminal 4 and the clips of the pair and also to prevent the clips -of .the pair from spreading. This action is obtained through the nied/ium of awe'dgev element of frusto-conic'al contour and which operates .against the surfaces 22to force 'the outer ends of the slianks 8 and 9 outwardly, whereby the clamping jaws carried-b the inner ends of the shanks will be force into clamping engagement with the clips of the air.. The wedge elementcornprises a cy-i indrical body portion 23, having extending. from the inner side thereof a frustoconical projection 24. The wedge element is formed with an axial bore 25 for the purpose of mounting said element on a shifting means therefor, to cause, when said shifting element is operated, the movingl of the wedge element to the desired position to set up the clamping action hereiiibeiloi'e referred to.

ln Figure 3 ofthe drawings, the shifting means consistsvgof a screw threaded rod 2U, extending through the `wedge element and having threaded 'engagement with the threads of the wall of the opening i. The

outer end of the rod 2G carries a winged head 2T to provide for the convenient adjusting of the rod 2G, andinterposed between the head 27 and the wedge element is a locking washer 28.

The construction shown in Figure 4,Y is the same as that shown in Figui-esl, 2 and 3, with this exception, that in lieu of providing the rod 26 with a winged head 2T, it has securedv to its outer end a substantially elongated handle 29. Otherwise than that as stated, the constructionshown in Figure 4 is the same as that shown in Figures 1, 2 and 3.

vThe shifting means provided with the win-ged head 2T, is employed on a fuse that has a switch incircuit, whereas the shifting means provided with `the handle 29 is to be used for alive clip at all times. The wedge element and locking washer are always einployed when the winged head shifting means or handle shifting means is used.

It is obvious thatjthe clamp can be constructed of a size so that it can be employed .in connection with any size fuse or fuse clip.

A fuse clip clamp in accordance with this invention possesses the advantages as hereinbefore referred'to, and although the pre ferred embodiment of the invention'is as illustrated and described, yet changes in the details of construction can be had which will fall within -the light of the invention as claimed.

What I claim is 1.1Afuse clip clamp comprising a base plate, a pair of clamping jaw shanks pivotally mounted on and extending inwardly from said plate, a clamping jaw'pivotally connected to and projecting from the inner end of each shank and having a clamping face arranged at the inner side of a shank, said clamping faces opposing each other,a coupling bar for said Shanks, a wedge element operating between the Shanks for shifting said jaws into c lampin position, and4 means extendinglthrough said element and engagin with t e base plate for operating said we ge element.

2. A' fuse `clip clamp comprising a base plate,A a pair of clamping jaw Shanks pivotally mounted on and extending inwardly from said plate, a clamping jaw pivotally vconnected to and projecting from the inner end of each shank andhaving a. clamping Lampes "F,

face arranged at the inner side ofa Shank, said clamping faces opposing each other,'a couplin bar for said Shanks, a-wedge element operating between the Shanks for shift-l ing said jaws into clamping position, and a threaded element extending' through said wedge element and threadably engaging with said base plate for'shifting the wedge element to operative position with respect to said Shanks. f

A fuse clip clamp ,comprising a base plate, a pair of clamping jaw Shanks pivotvally mounted on and extending inwardly lfrom said plate, a clamping jaw pivotally vconnected to and. rojecting from the inner end of each shan `and havinga clamping face arranged at the inner side of a shank,- said clamping faces opposing each other, a

coupling bar for said shanks, a wedge ele- `ment operating between the Shanks for shifting said aws into 'clamping position, and a threaded element extending through said wedge element and threadably engaging with said base plate.l for shifting lthe wedge element to operative position with res ect to Said Shanks, said wedge element oosely mounted en rsaid threaded element.

4. A fuse clip clamp comprising a base plate, a pair of lamping jaw shanks-pivotally mounted on and extending inwardlyfrom said plate,a clamping jaw pivotally connected, to and projecting from .the'inner end of each shank and having a clamping face arranged at the inner side of a shank,

a said clamping faces opposing each v other` a coupling bar for said Shanks, awedge e e5 ment operating between the Shanks for shifting said jaws into clamping position, a threaded element extendino through Said Wedge element and threadably 'engaging with said base plate for Shifting the wedge element to operative position with respectV to said Shanks,l said wedge element loosely vmounted on said threaded element, and a 'locking washer .mounted on said threaded element in advance of and engageable with said Wedge element.

`. 5. A fuse clip clamp comprising aI base plate, a pair of clamping jaw Shanks pivoti ally mounted on and extending inwardly -from said plate, a clamping jaw 'pivotally Ionnected to and lprojecting from the inner vsaid AShanks, said wedge element 4mounted on said threaded element, a locking lend' of each shank and having a clamping face arranged at the inner side of a shank, said clamping faces opposing'each other, a coupling bar for said Shanks, a wedgeelement operating between the 'Shanks for .KB v.

shifting said jaws into clamping position, a l

threaded element extending through said wedge element and threadably engaging with said base plate for shifting the wedge element to operative position with res ect to oosely washer mounted on said threaded element in 'advance of and engageable with .said wedge element, and each o Said' Shanks provided with atapered surface engageableby said Wedge element.

t 6. A fuse clip clamp comprisin a base plate, a pair of clamping jaw shan eccentrically pivoted to said base and spaced from each other, a clamping jaw concentrically pivoted to the inner end of each shank,- said jaws opposingv each other, acouplin bar for saidshanks', a wedge element inclu ing a truste-conical extension' opposingand engagingywith 'saidshanks for shifting said l -jaws to operative position, and means ex-4 tending vthrough said wedge element and threadably-,engaging with said base plate .for operating'said wedge element to shift j said .jaws to clamping position.

7 A useiclip clamp comprising a vbase plate, a'pair of clamping. j aw Shanks eccen-l trioally pivoted to Said baseland Spaed from each other, a clampin jaw conoentrically jaws opposing each other, a coupling bar for said Shanks, a wedge element inclu ing a frusto-conical extension opposing and en vpivoted to the inner en of each shank, said gaging with said Shanks for shifting saidA jaws to operative position, .a threaded'elehereto.

j PETER STRUGHOLD. Y 

